Yep thats themm. I have the one in the first picture when you click harrows. Its the 16. It has 16 disks that are 12" in diameter i think it is?
Mine has 12 discs that are each 16" in diameter; you can find them in all sorts of configurations.
I went to my farm today and did a little work; also did a lot of thinking about the problems I am having in hooking up equipment to the Yanmar. It just shouldn't be that way. I got the old JD arms and brought them home; they would actually work on the Yanmar if I bought longer stabilizer chains. But after looking at how the JD works, I realized that the Yanmar 3 point hitch system is likely just incorrectly installed. Here is the way it came from Fredricks:
Notice that the stabilizer chain is in front of the lift arm leveler. That leveler is what prevents it from opening far enough to hook to the equipment. Notice how its at an extreme angle toward the rear of the tractor, leaving no room for the arm to move. Now look at how the JD works:
In the JD system, the stabilizer chain is behind the lift arm leveler and allows it to open as far as needed. Also notice that the leveler is at about 90 degrees with the ground, allowing it to pick the arm straight up without any binding at all. I decided after looking at the JD that Fredricks just didn't install it correctly. When I got home, I moved the lift arm leveler so that it is now in front of the stabilizer chain. Now it picks straight up and isn't in a bind at all. I have a lot more movement in the lift arms and they will open all the way to the tires when hooking up equipment. I believe that the problem I've been having, and apparently others have too, is that Fredricks isn't installing the 3 point system correctly. Here is the way it looks now:
I did an internet search to see how other brands of tractors work, and all I found are like the JD. By moving it like I have done, it probably won't pick up quite as much weight. I think there is something of a mechanical advantage for it to lift at an angle the way they set it up. But the cost of that bit of extra lifting capacity is too high for me; I was dreading having to change equipment; now there is nothing to it. It will still lift my heaviest piece of equipment with ease, so I intend to leave it this way. If I can find longer stabilizer chains at a reasonable price I will switch to the JD arms. But I'm not really concerned about it now as everything hooks up easily. I hope some of you other guys will tell us how yours are set up/